| 物联网距离和业务特征结合的频谱接入方法 |
| |
| 引用本文： | 孙 君,朱洪波.物联网距离和业务特征结合的频谱接入方法[J].通信学报,2012(4):25-30. |
| |
| 作者姓名： | 孙 君 朱洪波 |
| |
| 作者单位： | 南京邮电大学通信与信息工程学院通信技术研究所,江苏南京210003 |
| |
| 基金项目： | 国家青年基金资助项目(61001080);江苏省“973”计划基金资助项目(BK2011027);国家科技重大专项基金资助项目(2011ZX03005-005);南京邮电大学校科研基金资助项目(NY210007)~~ |
| |
| 摘 要： | 针对物联网应用中的频谱使用特性提出一种距离和业务结合的频谱接入方法。首先根据非系统用户与系统用户的距离关系构建用于标识系统用户信道可用度的列表,以此提供非系统用户间的资源分配等级。其次,根据非系统用户和系统用户对信道使用特性建立业务匹配关系式,在可用度列表和业务匹配关系式的基础上,构建干扰驱动效用函数,从跨层优化角度设计频谱接入方法。结果证明该方案既能够抑制非系统用户对系统用户干扰,又能够确保物联网应用的服务质量的资源共享。
|
| 关 键 词： | 机会频谱接入 业务类型 跨层设计 频谱共享 物联网 |
Opportunistic spectrum accessing joint distance with service characteristics in IOT networks |
| |
| SUN Jun,ZHU Hong-bo.Opportunistic spectrum accessing joint distance with service characteristics in IOT networks[J].Journal on Communications,2012(4):25-30. |
| |
| Authors: | SUN Jun ZHU Hong-bo |
| |
| Affiliation: | (Institute of Communication Technology,School of Communications and Information Engineering Nanjing University of Posts and Telecommunications,Nanjing 210003,China) |
| |
| Abstract: | An accessing scheme which combines distance with service for the applications in IOT networks was proposed.First,a channel-availability list based on the distance relationship between system and non-system users was built.The list provided a priority of each channel for non-system users.Then the service-matched expression between the IOT user and the liscensed user was proposed.Based on the list and the expression,a interfrence-driven utility function was de-fined.Finally,the accessing scheme was optimized from the cross-layer design point of view.It was proved that the scheme guaranteed both the interference suppression and the resource sharing in IOT based on the QoS requirements. |
| |
| Keywords: | opportunistic spectrum access service type cross-layer design spectrum sharing IOT networks |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《通信学报》浏览原始摘要信息 |
|
点击此处可从《通信学报》下载全文 |
